More Unlockables

Unlock expert ghost data by beating regular ghost data. (You have to beat it by a certain amount of time that varies by course)

Unlock an alternate opening screen and alternate ending by acheiving at least a star rank in every cup.

Unlock the option to send pictures to your Wii message board by completing all 8 cups in a class.

Unlock Carts and Bikes 50cc by getting a trophy in every 50cc cup.

Unlock Carts and Bikes 100cc by getting a trophy in every 100cc cup.